I was just re-listening to the episode of 8th March when the Brookfield cows got out and Pip and Tobeeeee rounded them up. According to a Welsh meat board website the incubation period is 2-20 days. The Brookfield cows didn’t get sick until 17 March, so they could have been incubating the disease on the 8th but not actively sick – but then Ruth and David have had them for about a year, so why did they suddenly become ill? Isn’t it possible the disease came from the more recently purchased Bridge farm cattle even though they got sick later? It is all rather confusing. And how did the disease somehow get up to Home Farm?
All explanations would be very welcome – I feel the need of a veterinary equivalent of Cosmo!